Fix test case again because of SDDisplayLink behavior, do not use the isRunning check
Fix test case again because of SDDisplayLink behavior, do not use the isRunning check

dreampiggy/SDWebImage,awkward/SDWebImage,awkward/SDWebImage,tualatrix/SDWebImage,dreampiggy/SDWebImage,dreampiggy/SDWebImage,awkward/SDWebImage,rs/SDWebImage